Damper-regulator.



G. W. HAMM.

DAMPER REGULATOR.

APPLICATION FILED JUNE 21. 1912.

Patented Apr. 8, 1913.

CZqyZ m/W/Yamm,

COLUMBIA PLANOGRAPH IO-,WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

CLAYTON W. HAMM, OF YORK, PENNSYLVANIA, ASSIGNOR 0F ONE-THIRD T0 WILLIAME. KOCH AND ONE-THIRD T0 CHARLES ZULLINGER, BOTH OF YORK, PENNSYL-VANIA.

DAMPER-REGULATOR. I

Specification of Letters Patent.

Patented Apr. 8, 1913.

Regulators, of which the following is a specification.

My invention relates to damper regula--,

tors, and to that particular type in which time mechanism releases aconnection controlling operating means for the damper.

The invention consists in the features and combination and arrangementof parts hereinafter described and particularly pointed out in theclaims.

In the accompanying drawings, Figure 1 is a side elevation of theinvention, and Fig. 2 is an end view.

In these drawings 1, indicates an ordinary alarm clock having the button2 at the rear, which, as in ordinary practice, is set in motion when thealarm mechanism goes off. Or in other words, which is turned when acertain time is reached. This button controls a lever 3, which in turncontrols a damper operating mechanism. This operating means consists ofa compound pulley 9, of general cone form, it having a plurality ofseparate grooves 10, of different diameters. This drum is under theinfluence of a weight which may be arranged in different ways, as forinstance, by a weight 11, ad-' justably mounted on an arm 12, which isattached to the drum or a weight may be used, attached to a chainpassing over the drum. The different surfaces or grooves 10, of the drumaflord means for attachment by chains or other connections leading ofl"to the several dampers of the furnace or furnaces, and these chains maybe attached in any suitable manner, as for instance, by providingopenings, as at 13, in the bottom of the grooves 10, through which theends of the chains may be passed, to be held on the interior of the drumby a ring or other form of enlargement attached to the chain. The drumis hollow, so that access may be readily had from one end to theinterior for the attaching of the chains as just described.

It will be understood that when the drum is released from thecontrolling lever, and is rotated under the action of its weight, thechain which is attached to the larger portion of the cone will be givena greater movement than that attached to either of the smaller diametersof the cone and thus the one element may be employed to transmitdifferent degrees of movement to different dampers. The clock issupported on a base 14, which base has recesses at 15, diverging fromeach other to receive the divergent legs of,the clock, and I employ alsoa band 16 passing over theclock and screwed to the base 14 to hold theclock securely in position.

The drum is fixed on a shaft 8, mounted upon the standards 4, and theshaft has fixed thereto a crank arm 7 by which the drum may be rotatedso as to be re-set. For holding the drum readyfor action, I provide alug 17 on the crank arm, which engages a lug 18 on a latch 19, which ispivoted to the standard 4, at 20, the said latch depending from saidpivot and being engaged at its free end by the hooked end of thecontrolling lever 3.

It will be observed that the lug on the crank arm engages the lug on thelatch at a point close to the pivot of the latch so that the strain towhich the latch is subjected, will be borne partly by its pivot andpartly by the hooked end of the lever 3 engaging the free end of thelatch.

By this construction, while the device will effectually resist thestrain and wear, it will be rendered sensitive to operation by therelease of the lever 8. That is to say, a large portion of the strainwill be borne by the pivot of the latch and the engaging parts of thelatch and lever 3 will be under more sensitive contact than wouldotherwise be the case, and the parts will be subjected to less wear atthis point. When the lever 3 is moved by the clock mechanism and itshooked end thrown down, the latch will be turned on its pivot, thusreleasing the crank arm and the drum so that the damper may be operatedby the connection extending from the drum.

It will be noticed that the stand for the clock is provided with arecess curved to fit the circular form of the clock casing.

It will be observed that the lever 3 is of peculiar form in that one armextends laterally from its pivot to engage the clock mechanism while theother arm extends downwardly from the pivot and thence laterallyterminating in a hooked end which engages the latch. The constructionand arrangement of parts is such that the pivot of the lever 3 is in aplane between parallel planes passing respectively through the shaft 8and the hooked end of the lever 8. This brings saidpivot along side ofthe arm 7 and at a point between the end of the latch and the center ofthe drum. It will be seen from this construction that pressure exertedby the drum will tend to swing the lever 3 clockwise and thus the hookedend of the lever will tend to rise under this pressure resulting in afirmer contact between said hooked end and the end of the latchaccording as the pressure from the drummay be increased. In other words,when the lever is in contact with the end of the latch the pressure ofthe drum instead of tending to release the lever from the latch has thecontrary effect, because it tends to swing the lever in such directionthat contact will be rendered more secure.

2. In combination, a turnable member for operat ng a connection leadingto the i damper, a shaft therefor, a lever pivot-ally mounted and havinga hooked end, a member engaging the hooked end of said lever for holdingthe said turnable member, a time releasing mechanism engaging the otherend of said lever, the pivot of said lever being located in a planebetween parallel planes passing through the center of the turnablemember and the hooked end of. said lever whereby pressure from theturnable member will tend to move the hooked end of the lever toward thecenter of the turnable member into firmer engagement with the saidmember, substantially as described.

3. In combination, a turnable member for receiving the connectionleading to the damper, a time releasing mechanism located at one side ofthe turnable member, a lever pivotally mounted having one arm extendinglaterally from the pivot and enga ed by the time releasing mechanism,the ot ier arm of said lever extending downwardly and laterally from itspivot and terminating in a hook, and a member for holding the turnablemember, said member engaging the hooked end of the lever, the pivot ofthe lever being located in a plane intermediate of parallel planespassing through the center of the turnable member and the hooked end ofthe lever, substantially as described.

In testimony whereof, I ailix my signature in presence of two witnesses.

CLAYTON \V. I'IAMM.

Vitnesses EDWARD J. LOUOKS,

S. G. STINE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

